Summary statistics for e4_c1_28 variable in prds_hosp10_yr2010 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
    e4_c1_28 |        493    .3278972    .1546312    .000369    .821615

by Jean Roth , jroth@nber.org , 24 Aug 2018